Kernel Initialized in iMX6

Stefan Kalkowski stefan.kalkowski at ...1...
Tue Jul 22 11:22:49 CEST 2014

Hi Chirag,

On 07/22/2014 10:54 AM, chirag garg wrote:
> Hi all.
> I am trying to port genode 14.05 on iMX6 board. As Aditya done this
> successfully for Genode 13.05. But Genode 14.05 is having so many changes
> from version 13.05. I am successfully able to build for iMx6 and it's
> creating uImage for "printf" script. But when i am running this uImage on
> the Board and its giving following messages :
>  starting Kernel...
> Genode 14.05
> Kernel Initialized
> int main( ) : --- create local services---
> failed to communicate with thread event

That's looking good, at least you've already some initialization code
passed. The message "failed to communicate with thread event" might
imply that core triggered a pagefault, something which should never
happen normally, because virtual memory of core is translated eagerly,
and there is no pager resolving page-faults from core.

Please try to apply this patch to your branch:

In case that core provokes a pagefault, you'll get additional
information about the faulting address and instruction pointer of core,
so that you can find out the root cause of the problem.

I think, it would be best to get this debugging helper into the mainline

> Any idea How will I start kernel ? where should i look ??

The kernel is already started, even core, the first, and primary
user-land process, is already running. Now, you've to bumble through
arising problems.


> Regards
> Chirag Garg
> IIT Madras , Rise Lab
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Stefan Kalkowski
Genode Labs ยท

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